Re: Kernel crash if both devices in raid1 are failing

2016-05-02 Thread Dmitry Katsubo
Hello, If somebody is interested in digging into the problem, I would be happy to provide more information and/or do the testing. On 2016-04-27 04:44, Dmitry Katsubo wrote: > # cat /mnt/tmp/file > /dev/null > [ 11.432059] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 > [ 11.43666

Re: Kernel crash if both devices in raid1 are failing

2016-04-26 Thread Dmitry Katsubo
On 2016-04-25 09:12, Dmitry Katsubo wrote: > I have run "btrfs check /dev/sda" two times. One time it has completed > OK, actually showing only one error. The 2nd time it has shown many messages > > "parent transid verify failed on NNN wanted AAA found BBB" > > and then asserted :) But I think th

Re: Kernel crash if both devices in raid1 are failing

2016-04-20 Thread Liu Bo
On Mon, Apr 18, 2016 at 01:18:31AM +0200, Dmitry Katsubo wrote: > On 2016-04-14 22:30, Dmitry Katsubo wrote: > > Dear btrfs community, > > > > I have the following setup: > > > > # btrfs fi show /home > > Label: none uuid: 865f8cf9-27be-41a0-85a4-6cb4d1658ce3 > > Total devices 3 FS bytes use

Re: Kernel crash if both devices in raid1 are failing

2016-04-20 Thread Dmitry Katsubo
On 2016-04-19 09:58, Duncan wrote: > Dmitry Katsubo posted on Tue, 19 Apr 2016 07:45:40 +0200 as excerpted: > >> Actually btrfs restore has recovered many files, however I was not able >> to run in fully unattended mode as it complains about "looping a lot". >> Does it mean that files are corrupte

Re: Kernel crash if both devices in raid1 are failing

2016-04-19 Thread Duncan
Dmitry Katsubo posted on Tue, 19 Apr 2016 07:45:40 +0200 as excerpted: > Actually btrfs restore has recovered many files, however I was not able > to run in fully unattended mode as it complains about "looping a lot". > Does it mean that files are corrupted / not correctly restored? As long as yo

Re: Kernel crash if both devices in raid1 are failing

2016-04-18 Thread Dmitry Katsubo
On 2016-04-18 02:19, Chris Murphy wrote: > With two device failure on raid1 volume, the file system is actually > broken. There's a big hole in the metadata, not just missing data, > because there are only two copies of metadata, distributed across > three drives. Thanks, I understand that. Well,

Re: Kernel crash if both devices in raid1 are failing

2016-04-17 Thread Chris Murphy
On Thu, Apr 14, 2016 at 2:30 PM, Dmitry Katsubo wrote: > Dear btrfs community, > > I have the following setup: > > # btrfs fi show /home > Label: none uuid: 865f8cf9-27be-41a0-85a4-6cb4d1658ce3 > Total devices 3 FS bytes used 55.68GiB > devid1 size 52.91GiB used 0.00B path /de

Re: Kernel crash if both devices in raid1 are failing

2016-04-17 Thread Dmitry Katsubo
On 2016-04-14 22:30, Dmitry Katsubo wrote: > Dear btrfs community, > > I have the following setup: > > # btrfs fi show /home > Label: none uuid: 865f8cf9-27be-41a0-85a4-6cb4d1658ce3 > Total devices 3 FS bytes used 55.68GiB > devid1 size 52.91GiB used 0.00B path /dev/sdd2 >